robinson



(No Model.)

F. O. ROBINSON.

TRANSOM PIVOT.

No. 335,310. Patented Feb. 2, 1886.

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TRANSO SPECIFICATION forming part of Letters Application filed September 25, 18:53

To all whom, it may concern.-

Be it known that I, FRED O. RonINsoN, of the city and county of New York, in the State of New York, have invented a new and useful Improvement in Pivot-Supports for Transom- Lights, of which the following is a specification.

Myinvention relates to pivot-supports upon which transom sashes or lights are hung so that they may be swung readily to close the transom Opening or to afford ventilation through such opening.

As ordinarily constructed, these pivot-supports are formed by plates secured to opposite ends of the sash or light, and each having a projecting stud, which engages with the bearing formed in a plate secured to the side ofthe frame. These bearin plates each have an opening at the front, so as to permit the sash or light to be readily taken down when desired for cleaning; but any burglar may, by opening the transom and then raising it slightly, push it inward out of its bearings, and so gain access to the apartment.

The object of my invention is to provide pivot-supports for transom lights or sashes which will afford ample provision for removing the sash or light, when it is desired to clean it, and yet will prevent the sash from being removed by a person 011 the outside of the room or apartment.

My improved pivot-supports consist, essentially, of a plate secured to the sash at its end, and having an integral pivot-stud projecting from its outer face, and asecond plate secured to the frame, and having a U-shaped bearing open on the inner side and a cap for closing this hearing after the stud which projects from the sash-plate has been entered therein, and which may be secured by a screw to the frame on its inner side.

In the accompanying drawings, Figure 1 represents an elevation of a portion of a doorframe and a transom light having myimproved support-s applied to it. Fig. 2 is a horizontal section on a larger scale, showing my improved support and the portions of a sash and frame to which the parts thereof are secured. Fig. 3 is an elevation of the support,

looking from the inner side of the bearingplate. Fig. 4 represents the inner face of the PATENT OFFICE,

OF NEV YORK, N. Y.

M PIVOT.

Patent No. 335,310, dated February 2, 1886.

Serial No. 179,135. (No model.)

bearing-plate. Fig. 5 is an edge or end View thereof. Fig. 6 is an end view of the cap whereby the U-shaped bearing of the plate shownin Figs. 4 and 5 is closed; and Fig. 7 is a face view of the plate which is to be secured to the sash, and which has projecting from it a pivot stud orjournal.

Figs. 3 to 7, inclusive, are upon the same scale as Fig. 2, and similar letters of reference designate corresponding parts in all the figures.

A designates the upper portion of a door, and B designates the frame or casing of the door, in which is formed a transom-opening, B. To this transom-opening is fitted a sash or transom-light. which is pivoted at opposite ends in the frame B, so that it may be swung to open and close the transom.

The construction of the several parts which form the pivotsupports will be best understood from Figs. 2 to 7, inclusive. These parts consist, essentially, of plates D E, which are secured, respective] y, to the adjacent surfaces of the sash C and the frame B, and the cap F, applied to the plate E. The plate D has pro jecting from its outer face a stud or pivot, 11, which may be cast with a flange or head, and is also constructed with holes a". for the re ception of screws, whereby the plate may be secured to the sash.

The plate E is provided with holes I), for the reception of screws to secure it to the frame B, and upon the inner side of the plate E is a horizontal channel or recess, 1), which extends entirely across the plate from edge to edge thereof.

In the channel or recessed portion 1) of the plate E is formed a U -shaped bearing, 1), which is open at the inner edge of the plate, and which is of a size to easily receive the stud or pivot a, while the recess or journal 1/ receives the head or flange a of the stud or pivot a. The cap F comprises an inwardlyprojecting flange, c, which is concave on its inner face, as shown in Fig. 6, so as to lit the stud a, and it also comprises a rectangular project-ion or shoulder-like portion, 0, which enters between the opposite edge walls of the recess or channel 2/ and steadies or holds the cap in place upon the plate E. The cap F also comprises a flange or plate portion,

which projects at right angles to the plane of the plate E, and which may be secured to the inner face of the frame B, by a screw, (1, inserted through a hole, 0, provided therein.

From the above description, and particularly from Fig. 2, it will be readily understood that so long as the cap F is in place and secured by its screw (1 to the inner surface of the frame B, the studs or pivots (4 cannot be removed from the U-shapcd open bearings of the plate E; but it will be also understood that by removing the single screws d,whicl1 secure Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the plate D, to be secured to the sash and provided with an integral pivot-stud, a,-of the plate E, to be secured to the frame or casing, and having a U- shapcd hearing, If, open at the'inner edge of the plate for the reception of the stud a, and a cap closing the U-shaped bearing in the plate E, for securing the pivot-stud a therein, substantially as herein described.

2. The combination, with the plate D, provided with a headed or flanged stud, a, of the plate E, channeled or recessed upon its inner face to receive the flange of said stud, and having a U shaped bearing forthe body ofthe stud, and a cap for closing the bearing at the inner edge of the bearing plate, substantially as herein described.

FRED C. ROBINSON.

YVitnesses:

FREDK. HAYNns, HENRY MCBRIDE. 

